<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="es-es">
<head>
<title>Plantilla</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<style type="text/css">
* { margin: 0px;
padding: 0px;
}
html, body { height: 100%;
width: 100%;
}
#padre { border-color: rgb(255, 0, 0);
border-width: 2px;
height: auto ! important;
position: relative;
background-color: rgb(51, 153, 153);
min-height: 100%;
}
#uno { border-color: rgb(51, 255, 51);
border-width: 2px;
height: 50px;
background-color: rgb(102, 204, 204);
}
</style>
</head>
<body>
<div id="padre">
<div id="uno">Esta fila tendrá siempre 50px de
alto</div>
Esta fila ocupará el resto de alto<br />
</div>
</body>
</html>